Infiniti FX 3.5 V6 307 hp — Stage 1 file (+13 hp)

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Chip tuning for Infiniti FX 3.5 V6 307 hp ECU

Infiniti FX (2006) 3.5 V6 307 hp — premium petrol engine of the passenger segment of the Renault-Nissan-Mitsubishi Alliance group (Япония, 1933). Stage 1 chip tuning raises power from 307 to 320 hp (+13 hp, +4%) and torque from 355 to 370 Nm (+15 Nm). ECU — Hitachi BEDxxx/MECxxx. Flashing method: OBD or Bench depending on the unit's protection. The 2006 generation — old-era petrol ECUs (ME7/ME9/MED9/Simos) with easily readable memory.

Infiniti shares platforms and engines with Nissan's premium segment. Infiniti is part of the Renault-Nissan-Mitsubishi Alliance via Nissan. Infiniti is Nissan's premium sub-brand, launched in 1989 for North America. Nismo is Nissan's performance division, the equivalent of AMG/M. The GT-R is Nissan's flagship supercar with a BiTurbo V6. Nissan's petrol range covers mainstream turbocharged and naturally aspirated engines.

The Nissan community in the JDM segment is the world's largest for the GT-R. The GT-R community is an industry of its own with ready-made Stage files. High-output Nissan models deliver a solid gain with Stage 1.

Frequently asked questions

What is the Stage 1 effect on the Infiniti FX 3.5 V6 307 hp?

The Stage 1 gain for the Infiniti FX 3.5 V6 307 hp is 13 hp (+4%) over the stock 307 hp, for a total of 320 hp. Torque rises from 355 to 370 Nm (+15 Nm).

What is Stage 1 chip tuning for the Infiniti FX?

Stage 1 is a software optimization of the factory ECU firmware of the Infiniti FX with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed. The gain is +13 hp with no hardware changes.

Do you need hardware changes for Stage 1 on the Infiniti FX?

The high-output Infiniti FX 3.5 V6 307 hp has a conservative factory calibration aimed at the mass market. Stage 1 unlocks the engine's real potential while turbo and injector life are preserved.

What is Stage 2 for the Infiniti FX 3.5 V6 307 hp?

Stage 2 on the Infiniti FX 3.5 V6 307 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.

What ECU platform does the Infiniti FX 3.5 V6 307 hp use?

The Infiniti FX 3.5 V6 307 hp is fitted with the Hitachi BEDxxx/MECxxx ECU. The read method depends on the unit's protection: OBD, Bench via BDM, or Boot mode.

Does the factory warranty of the Infiniti FX remain valid after Stage 1?

After remapping the Infiniti FX, the official factory warranty on the engine and gearbox is lost (this applies to any manufacturer when the ECU is modified). CHIPOK guarantees the quality of the calibration and free revisions.

How long is the wait for a Stage 1 remap for the Infiniti FX?

Reading and writing via OBD takes 25-30 minutes on the Infiniti FX. Bench reading (BDM/JTAG) takes about 60 minutes plus refitting. Remote file processing at CHIPOK takes 5-30 minutes.

How do you roll back to the factory firmware of the Infiniti FX?

Before Stage 1 the original of the Infiniti FX 3.5 V6 307 hp is read out and saved — returning to the factory state is possible at any time.

How much does chip tuning the Infiniti FX 3.5 V6 307 hp cost?

The remap price for the Infiniti FX 3.5 V6 307 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.

Last updated: 01.09.2026 · Source: manufacturer technical documentation · Measurements: CHIPOK dyno